40345351234 has 8 divisors (see below), whose sum is σ = 60566953788. Its totient is φ = 20156366640.

The previous prime is 40345351231. The next prime is 40345351243. The reversal of 40345351234 is 43215354304.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 38206566225 + 2138785009 = 195465^2 + 46247^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 40345351234.

It is not an unprimeable number, because it can be changed into a prime (40345351231) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8151397 + ... + 8156344.

Almost surely, 2^40345351234 is an apocalyptic number.

40345351234 is a deficient number, since it is larger than the sum of its proper divisors (20221602554).

40345351234 is a wasteful number, since it uses less digits than its factorization.

40345351234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16308980.

The product of its (nonzero) digits is 86400, while the sum is 34.

The spelling of 40345351234 in words is "forty billion, three hundred forty-five million, three hundred fifty-one thousand, two hundred thirty-four".